Depends on the whether you dose the powdered packaged stuff or fresh nuts. Usually 5-20g is used. It's best to start very low and be sure to not redose as it has a very long come up time.
You should put it on your legs and your arms once per day. That will keep your skin smooth. But you should be careful what type of lotion you use if you have sensitive skin look for lotion that says...
Smoking a large amount of saliva won't do a great deal to prolong the experience. One would become incapacitated and unable to continue smoking, and the experience would end in a time frame not too...